How to use

de.schlichtherle.truezip.io.InputException

constructor

throw new InputException("an input exception has occurred");

try {
         InputStream inputStream = getContentResolver().openInputStream(uri);
         BufferedReader br = null;
         if (inputStream != null) {
           br = new BufferedReader(new InputStreamReader(inputStream));
           String line;
           while ((line = br.readLine()) != null) {
             text.append(line);
             text.append("\n");
           }
         } else {
           subscriber.onError(new InputException("There's something seriously wrong with this file"));
         }
       } catch (IOException e) {
         e.printStackTrace();
         subscriber.onError(e);
       }